中国塑料 ›› 2022, Vol. 36 ›› Issue (1): 142-147.DOI: 10.19491/j.issn.1001-9278.2022.01.021

• 标准与测试 • 上一篇    下一篇

基于热失重分析对聚合物发泡剂ADC发气量测定方法的研究

王晓东1,2,3, 花蕾1,2(), 董爱娟1,2, 罗李华4   

  1. 1.同济大学浙江学院,浙江 嘉兴 314000
    2.嘉兴市土木与环境高性能功能材料重点实验室,浙江 嘉兴 314000
    3.嘉兴拜伦新材料科技有限公司,浙江 嘉兴 314000
    4.浙江杰上杰新材料股份有限公司,浙江 嘉兴 314200
  • 收稿日期:2021-06-30 出版日期:2022-01-26 发布日期:2022-01-21
  • 基金资助:
    浙江省自然科学基金项目(LGF21E030001);浙江省教育厅科研项目(Y202043704)

Study on measurement method of gas evolution of foaming agent ADC based on thermogravimetric analysis

WANG Xiaodong1,2,3, HUA Lei1,2(), DONG Aijuan1,2, LUO Lihua4   

  1. 1.Zhejiang College,Tongji University,Jiaxing 314000,China
    2.Jiaxing Key Laboratory of High?performance and Functional Materials in Civil and Environmental Engineering,Jiaxing 314000,China
    3.Jiaxing Bylun Advanced Material Technology Co,Ltd,Jiaxing 314000,China
    4.Zhejiang Joysun Advanced Material Co,Ltd,Jiaxing 314200,China
  • Received:2021-06-30 Online:2022-01-26 Published:2022-01-21
  • Contact: HUA Lei E-mail:hualei@tjzj.edu.cn

摘要:

根据偶氮二甲酰胺(ADC)热分解第一阶段(200 ~ 240 ℃)的分解方程式,建立ADC的分解过程与发气过程之间的函数关系式,将ADC的热失重(TG)曲线转变为TG发气曲线。结果表明,通过对比发泡剂ADC的TG发气曲线和排水集气法测定的发气曲线,得出两种测定方法测得ADC的起发温度、最大发气速率温度、终止发气温度等数据非常接近,两条曲线与拟合曲线的对比Adjusted R?Square分别达到0.993 7和0.915 43,因此,在ADC热分解第一阶段(200~240 ℃),ADC的TG发气曲线可以通过TG曲线计算得到,并可以替代传统的排水集气法测定的发气曲线。

关键词: 发泡剂, 偶氮二甲酰胺, 发气量, 热失重分析, 发气曲线

Abstract:

According to the decomposition equation of the first stage of azodicarbon amide(ADC) thermal decomposition in the temperature range of 200 ~ 240 ℃, the functional relationship between ADC decomposition process and gas generation process was established, and the thermal weight loss curve of ADC was transformed into TG gas?generation curve. The results indicated that by comparing the TG gas?generation curve of foaming agent ADC and the gas?generation curve measured by the drainage gas?gathering method, the data of starting temperature, maximum gas?generation?rate temperature, and ending gas?generation temperature of ADC measured by the two methods were very close with each other. The comparison adjusted R?squares between the two curves and the fitting curve were 0.993 7 and 0.915 43, respectively, In the first stage of ADC thermal decomposition, the TG gas?generation curve of ADC can be calculated using a TG gas?generation curve formula, which can replace the gas?generation curve measured by traditional drainage gas?gathering methods.

Key words: foaming agent, azodicarbon amide, gas volume, thermogravimetric analysis, gas evolution curve

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